1 pdumpfs is a simple daily backup system similar to Plan9's dumpfs
2 which preserves every daily snapshot. pdumpfs is written in Ruby.
3 You can access the past snapshots at any time for retrieving a certain
4 day's file. Let's backup your home directory with pdumpfs!
6 pdumpfs constructs the snapshot YYYY/MM/DD in the destination
7 directory. All source files are copied to the snapshot directory for
8 the first time. On and after the second time, pdumpfs copies only
9 updated or newly created files and stores unchanged files as hard
10 links to the files of the previous day's snapshot for saving a disk